Lanzhou University of Technology Institutional Repository (LUT_IR)
Watermarking algorithm based on Her transform | |
Wang, Li-Peng1,2 | |
2012-02-01 | |
发表期刊 | Chongqing Daxue Xuebao/Journal of Chongqing University |
ISSN | 1000582X |
卷号 | 35期号:2页码:143-148 |
摘要 | Most transformations used for digital watermarking in transformation domain are orthogonal transformations, such as DCT and DWT. Three types of orthogonal transformation with excellent performance are found by studying three systems of orthogonal functions: Haar function system, Haar type function system and Walsh function system. Her transformation is one of the three transformations. Her function system can not be used directly in digital watermarking as DCT matrix being used, since Her matrix of Her function system is not normalized orthogonal matrix. The corresponding discrete matrix is obtained by sampling Her continuous functions, and successfully used in digital watermarking with a series of experiments and theoretical analysis. A digital watermarking algorithm based on Her transformation is proposed. Experimental results show that the algorithm is simple and good at perceptual transparency as well as robustness of watermarking extraction. In addition, the experimental results of comparing with the traditional DCT watermarking show that this algorithm is of good robustness against noise and filtering. |
关键词 | Algorithms Digital watermarking Discrete cosine transforms Matrix algebra Walsh transforms Continuous functions Her transforms Orthogonal transformations Perceptual transparency Robustness against noise Transformation domain Watermarking algorithms Watermarking extraction |
收录类别 | EI |
语种 | 中文 |
出版者 | Chongqing University |
EI入藏号 | 20121314899367 |
EI主题词 | Orthogonal functions |
EI分类号 | 921 Mathematics |
来源库 | Compendex |
分类代码 | 921 Mathematics |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/111421 |
专题 | 兰州理工大学 |
作者单位 | 1.Chongqing Traffic Management Bureau, Chongqing 400054, China; 2.College of Electrical and Information Engineering, Langzhou University of Technology, Lanzhou 730050, Gansu, China |
推荐引用方式 GB/T 7714 | Wang, Li-Peng. Watermarking algorithm based on Her transform[J]. Chongqing Daxue Xuebao/Journal of Chongqing University,2012,35(2):143-148. |
APA | Wang, Li-Peng.(2012).Watermarking algorithm based on Her transform.Chongqing Daxue Xuebao/Journal of Chongqing University,35(2),143-148. |
MLA | Wang, Li-Peng."Watermarking algorithm based on Her transform".Chongqing Daxue Xuebao/Journal of Chongqing University 35.2(2012):143-148. |
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